Submarine vessel



. Aug. 18,1931 s. HORVATH 1,819,681

SUBMARINE VE-SSEL Filed June 19, 1930 l HI" Z :INVENTOR ATTORNEY Patented Aug. 18, 1931 STATS SANDOR HORVATH, or FLusnINe, NEW YORK suBMAnmE vEssnL Application filed June 19,

The present invention relates to improvements in submarine vessels, and more particularly to the means for raising and lowering the vessel to any required depth.

As far as known, the most common method of submerging a'submarine boat is to admit water to ballast tanks, When it is desired to come to the surface, the water is discharged from the said tanks. If anything goes wrong with the water discharge mechanism, the vessel is unable to rise to the surface.

The main object of the present invention is to simplify the constructions heretofore used, and to provide a submerging and raising means which not only is entirely reliable in operation, but which permits the vessel to rise automatically to the surface in case the submerging mechanism fails in its operation.

With these and other objects in View, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter described, pointed out in the appended claim and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and details of construction withln the scope of the appended claim, without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a submarine vessel constructed in accordance with the present invention; and Fig. 2 is a sectlon taken on line 2-2 of Fig. 1.

In the drawings, the numeral indicates the hull of a submarine vessel which is, preferably, of spindle form, having a nearly circular cross-section amidships, as indicated at 11, and tapering-toward the bow 12 and also toward the stern 13. The midship section is surrounded by a hollow tubular shell 1 1, which is open at both of its ends and spaced from the midship section of the hull by a plu rality of horizontal lateral fins 15 and by the keel 16. There are three pairs of horizontal lateral fins shown, but it is obvious that 1930. Serial No. 462,238.

any other suitable number may be employed according to the requirements. Theuppermost and lowermost fins, denoted by the numeral17, have a length corresponding to that of the shell, while. the, central ,fins,.;denoted by the numeral 18, extend from stemto stern. The length of the keel 16'corresponds to that of thefins 18., In theplane of the keel 16 are provided on the tops of the tapering sec.- tions'of the hull plates 19.

The vessel is provided with the usual vertically extending rudder 20 an also with a horizontally extending rudder 21, for the well known purpose.

At the stern of the hull is mounted a screw-propeller 22, driven by any suitable source of power. A screw-propeller 23 is provided at the bow which is also driven by any suitable source of power independent of the mechanism which actuates the screwpropeller 22. The propeller 22 is of the pusher type and the propeller 28 of the tractor type.

When the vessel is to be driven along the surface of the water, the propeller 22 alone is actuated. The fins or some of the same, depending upon the draft of the vessel, form a resistance surface to prevent careening or capsizing of the vessel, while the keel, which is of substantial depth, as clearly shown in drawings, steadies and trims the vessel. When it is intended to submerge the boat, both propellers are actuated, the propeller 23 being driven at a higher speed than the propeller 22, whereby the bow of the vessel is lowered in relation to the stern and, as the vessel proceeds, it is submerged, the rate of submersion depending upon the difference of speed of the two propellers.

The horizontal fins act in their inclined positions in the manner of a rudder and thereby aid in the descent of the Vessel.

In order to cause the vessel to rise to the surface, first the propeller 22 is actuated which causes the bow to be raised. If a comparatively slow rise tuated, but in this case the propeller 22 is I operated at a higher speed than the propel ler 23.

Should the propellers be thrown out of commission, or the engines operating the same be disabled while the vessel is submerged, the latter will rise automatically, but slowly to the surface, it being buoyant and kept under water only by motor power.

WVhat I claim is The combination with the hull of a submarine boat, of a pusher propeller at the stern thereof, a tractor propeller at the bow of said hull, said propellers being adapted to be actuated independently of one another and at different speeds for effecting the submerging and rising of the vessel, a shell surrounding the midship section of said hull and spaced therefrom, and a plurality of fins projecting laterally from said midship section within and to said shell, said shell being open at both of its ends. 7

Signed at New York City, in the county of New York and State of New York, this 24th day of May A. D. 1930. I I

SANDOR HORVATH. 

